Concentration of production
[经] 生产集中
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
and work begins at eight in the morning for me.
早晨八点我就得开始工作。
Rear sons for help in old age; and store up grains against famine.
养儿防老。
Now that a tunnel ahs been built through the mountains, the Pass is less dangerous,
如今由于山里开挖了隧道，翻越山口已不那么危险了。